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Updated: Jun 17, 2025

A Preclinical Model of Exertional Heat Stroke in Mice
Published on: July 1, 2021
在使用二胺胺后的运动热应激期间的热和心血管反应:随机交叉试验
Douglas Newhouse, Emily Mihalcin1, Karlee Lefebvre1
1School of Kinesiology, Lakehead University, Thunder Bay, Ontario, CANADA.
氨酸化物 (DPH) 在高温运动期间不会影响出汗,核心温度或心率. 这一发现挑战了关于在运动热应激期间使用抗组胺剂的现有建议.
科学领域:
- 运动生理学 运动生理学
- 环境医学 环境医学
- 药理学 药理学是指药理学的学科.
背景情况:
- 目前的运动热安全指南表明,抗组胺剂可能会通过降低出汗而增加热伤害风险.
- 很少有系统的证据支持这些建议.
研究的目的:
- 为了研究二氨酸化物 (DPH) 的影响,一种常见的抗组胺剂,在运动热应激期间对生理反应的影响.
- 为了确定DPH是否影响出汗,核心温度和心率 (HR).
主要方法:
- 这是一项双盲随机交叉研究,涉及20名健康成年人.
- 参与者在30°C,35%的相对湿度环境中60分钟的跑步机步行前服用了50mg的DPH或安慰剂 (PLA).
- 测量结果包括全身出汗损失,局部出汗率,直肠温度 (Trec) 和HR.
主要成果:
- 在DPH和PLA条件之间没有观察到全身出汗损失,出汗开始或稳定状态局部出汗率的显著差异.
- 在两个条件下,运动期间的核心体温和心率反应在两个条件下都是相似的.
- 基线和运动结束时的Trec和HR在DPH和PLA之间没有显著差异.
结论:
- 在年轻,健康的成年人中,50毫克的DPH在运动热应激期间不会改变出汗,核心温度或心率反应.
- 这些发现表明,在这些特定条件下,DPH可能不会构成先前怀疑的与热有关的伤害风险.
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